Paper-bag machine.



J. ROGERS, DEGD.

LGOLDSWDBD, ADMINISTRATOR.

PAPER BAG MACHINE.

- APPLICATION FILED APB.. 6, 1908. 945,73 l. Patented Jan. 4, 1910.

5 SHEETS-SHEET 1.

Q91 museo J. ROGERS, DEGD. J. GoLnswoRD, ADMINIBTBAToR.

PAPER BAG MACHINE. APPLIATION FILED APR.V 6, 190B..

Patented Jan 4', 1910;

5 SHEETS-SHEET 2.

ANowzw. u. GRAHAM co.. Pnermumocmvuins. wAslmmTcn. n a

J. ROGERS, DEGD.

- J. GoLnswonD, ADMINISTRATOR.

PAPER BAG- MAGHINB. l

APPLICATION FILED APR.'6, 190B.

Patented .1311.4, 1910,

5 SHEETS-SHEET 3.

VILmW ANDREW. u. GRAHAM cq, PMoTu-umoampuins. wAsnmaron, n c.

J. ROGERS, DEGD. AJ'. GOLDSWOBD, ADMINISTRATOR.

PAPER BAG MACHINE. i APPLICATION FILED APB.. 6. 1908.

Patented Jan. 4,- 1910.

Tn/522ml: M 57M PAPER BAG MACHINE. APPLIoA'HoN'HLED Arme, 190s.

Patented .12.11.4,1910

5 SHEETS-SHEET v5.

ANDREW. B GRAHAM om wom-ummmmms, wnshlmfuw4 D c NITED STATES PATENTOFFCE.

JOI-IN ROGERS, OF. CLEVELAND, OHIO; JAMES GOLDSWORD, ADMINISTRATOR OFSAID JOHN ROGERS, DECEASED, ASSIGNOR TO CLEVELAND-AKRON BAG COMPANY, OFCLEVELAND, OHIO, A CORPORATION OF OI-IIO.

PAPER-BAG MACHINE.

To all 'whom it may concern:

Be it known that I, JOHN ROGERS, citizen of the United States, residingat Cleveland, in the county of Cuyahoga and State of Ohio, have inventedcertain new and useful Improvements in Paper-Bag Machines, of which thefollowing is a specification.

This invention relates to machinery for making paper bags and hasespecial rcference to automatically acting mechanism for constructing asatchel end on what is known to the trade as a valve bag, and themachine is adapted to construct the satchel end upon both extremities ofa bag tube, which may in addition to its use to form a double ended bagbe made long enough to cut transversely in two, in the middle and thusform two bags, each provided with a satchel bottom, but open at the top,thus doubling the capacity and efficiency of the machine.

The machine is designed to automatically form the satchel or valve end,by first opening the free ends of the tube, spreading the free edges andforming corners therein, flattening and gluing the spread parts andinserting the cloth valve lining, and finally folding to a completeshape while the bag tube is in continuous motion therethrough eachaction being performed in its turn and relatively timed to the prior andsucceeding movements.

The several operations required to form the satchel or valve extremitiesupon the bag tube are alike for each end and are simultaneously carriedon while the tube passes through the machine, hence a description of themechanism required to form the satchel and valve at one end of the tubewill answer for a description of the mechanism required to form thesatchel and valve at the other end thereof.

The bag tube after being cut to the required length to form a doubleended bag tube is fed to the machine and at each end is received betweenrollers and an endless apron or band from which the ends project betweenguide plates so that they can be acted upon by the Satchel and valveforming devices without checking the movement of the bag tube.

Each satchel or valve end is formed upon the tube as follows: The tubeafter entering between the rollers and the endless bands,

. passes over a plate running the whole length Specification of LettersPatent.

Application filed April 6, 1908.

Patented Jan. 4;, 1910.

Serial No. 425,372.

of the machine, and the end is opened by means of suction obtained byair drawn through openings in the inclined walls of suction boxes, this-suction draws apart the sides of the bag mouth and permits of thespreading of the side edges of the mouth by folding one edge back uponone of the plates underneath which the bag moves. The bag end is thenpassed under suitable devices for gluing the folds and feeding andattaching the strip of cloth, and finally passes through devices forfolding the spread sides over each other, on the creased lines.

In this device all movements are obtained automatically from a centralsource of power and the various parts are manipulated by means ofvarious devices whereby the sucw cessive movements can be accuratelytimed.

A leading and important feature of the invent-ion lies in the capacityof t-he machine to turn out perfect work in large quantities and also inits adjustability to enable it to manufacture several sizes of bags, andto manufacture a doubled number of bags having only one valve or Satchelend, for each bag. This adjustability to provide double ended bags ofvarying length or to provide bag tubes of double length which can becentrally cut in two, to form two bags from each bag tube, is obtainedby separating or drawing together the separate sets of mechanism whichform the duplicate ends on the tube and stand in reversed position, andthe supporting frames therefor are independent and movable relativelytoward and from each other.

The invention is illustrated in the accompanying drawings, in which*Figure l is a top plan view of the machine, with the feeding tableremoved. Fig. 2 is a side elevation of the machine. Fig. 3 is a verticallongitudinal section. Fig. t is a partial end elevation. Fig. 5 is adetail in section showing the guides for the bags and one pair ofrollers. Figs. 6 and 7 are details of creasers which act on the ends ofthe bag blank as it passes around the feed cylinders. Fig, 8 is a detailin section of the feeding cylinder. Figs. 9 to 13 inclusive areillustrations of the bag blank in various condi-l tions of manufacture.

The machine as a whole is supported upon a frame A, which is of propersize and shape to support the parts to be hereinafter described. Thisframe has particularly cross bars a at opposite ends on which theduplicate sets of bag-forming instrumentalities are mounted in suchposition that they may be moved toward or from each other. At each sideof the machine is an angular rail 11 along the top fiange of which theends of the bags travel, and the pillars 5 at the ends of this rail restupon the cross bars a and are thus supported. Each rail carries a seriesof upper and lower drums or rollers 2 arranged in pairs at suitabledistances apart, and an endless belt 1 passes around the lower rollersof the various pairs. The upper rollers are supported by brackets 2*fastened to the rail (see Fig. 5), and the shafts of the lower rollersare mounted directly in bearings 2b in said rail. These rollers andbelts form duplicate sets of conveying devices which engage the bag tubeor blank at opposite ends and carry the same through the machine. Theshafts 3 of the lower rollers are driven by a succession of chainl andsprocket gearings indicated at .6, whereby they are all driven at thesame time, being actuated primarily by sprockets on a cross shaft 7 ator about the middle of the machine, and this shaft 7 has a gear 7a whichmeshes with a gear 1()a on the main driving shaft 10 which extendsacross under the bed of the machine and carries at one end the.

pulleys 13 to which the power is applied. The chain and sprocket gearingis duplicated at opposite sides of the machine, to operate the duplicateconveying devices.

The pillars 5 of the opposite rails 11 are connected at each end byright and left screws 8 which extend through said pillars and which whenturned by the hand wheels 9 move said supporting rails laterally towardand from each other, to enable the conveying and bag-forming devices tooperate upon blanks or tubes of different lengths. Each of the railscarries a set of devices for cutting, spreading, pasting, folding andcompleting satchel ends upon the bag tubes, and these devices will nowbe briefiy described, although it is to be understood that otherequivalent devices may be substituted within the scope of the invention.

The bag blanks are fed from a table B mounted upon the side frame of themachine and are fed forwardly therefrom onto a feeding cylinder C whichhas grippers c arranged to engage the corresponding end of the bag andcarry the same around the cylinder and deliver the same to the guiderails. Each of these cylinders is driven by a chain belt 16 from a shaftto be hereinafter referred to. The shaft of the cylinder is mounted in abox 17 on the main frame. As each tube or blank passes around with saidcylinder it receives the impression of the edges of a pair of creasingdisks 60 mounted upon a shaft 61 extending across the machine andadjustable thereon according to the work; and the blanks also receivethe impression of angular creasing segments 62 adjustably carried on across shaft 63, and these segments give the diagonal creases illustratedin dotted lines in Figs. 9 and 10, in which the bag tube or blank X isshown. The shafts 61 and 63 are driven by spur gearing from the shafts cof the cylinder C.

The grippers of each feeding cylinder release the bag tube when itreaches the conveying belt 1 and deliver the same onto said belt withits end resting upon the rail 11, and the first upper roller 2 forcesthe adjacent body part of the bag under the guide plate 11"L whichextends the length of the machine parallel to t-he rail 11 and inside ofthe same and at a slight distance therefrom, and the end of the bag tobe worked on thus projects through and above the slot 11b between therail and the plate in position to be operated on by the bag-formingdevices. The guide plate 11a is supported by overhanging brackets 11Cfixed to the rail 11. The end of the blank is first acted on by thesuction box 12 which is located above the rail and connected with anexhaust tube 1a through which the air is drawn from the box, causing thebag tube to separate or open as shown in Fig. 10. Then the bag passes tothe spreading and flattening devices indicated as a whole at 15. Theconstruction and operation of these devices will be found particularlydescribed and claimed in my co-pending application, No. 333,526 and, itis believed, need not be herein particularly described, except that thedevice has oppositely acting fingers F and a head which reciprocates upand down, causing the fingers E to work toward and from each other, andto spread and flatten the bag end and form the corners thereof, as shownin Fig. 11. The mechanisms on opposite sides are operated by a cross bar13 which is carried by arms 19 projecting from a rock shaft 20 which isvibrated by a lever 21 connected by a rod 22 to an eccentric 23 operatedby a cross shaft 24 which is driven by gearing 25 from the shaft 7 belowthe same. After vpassing the spreading and flattening devices the tubeis conveyed to and under the gluing devices which consist of a glueapplying segment 31 carried by the shaft 24 and which receives its gluefrom the glue roller 32 supplied by a small roller 34 from the glue pot30. The glue rollers 32, at opposite sides, are mounted upon the crossshaft 35 and the rollers 34C are mounted upon a cross shaft 36, theformer being driven by gearing 37 from the shaft 211, and the variousrollers may be shifted along said shafts to the proper position tocoperate with the glue applying segment according to the length of thebags being made.

rIhe devices for applying the cloth or valve patch (see Fig. l2) to theends of the tube are indicated at 33. These devices will be found alsomore particularly described in my application above referred to, butinasmuch as any of the well known devices for the purpose may be used,it is thought that an extended description thereof is unnecessary. Eachof said devices is driven from the shaft 7 by chain and sprocket gearingindicated at 3S. The cloth patch is applied to the glued surface of thebag, across the fold thereof, as shown in Fig. l2. The blank is nextconveyed to the formers 5l each of which positions the flaps of the bagbottom or end in readiness to be successively lapped over each other bymeans of the curved or angular edges of the turning plates or folders 49and 50 which are mounted upon the rail l1, the rst device, 49, turningover one side and the second device turning the other side over upon theirst and bringing the glued part together as shown in Fig. 12 andpressing the same to adhesion. The bags then pass out or oil' the guiderails at the rear end of the machine, and they may if necessary be runthrough a pair of rollers at t-he end of the machine.

The various operating parts will be constructed to operate in harmonioussuccession of movements and properly timed for the various actions, toperform the bag-forming operations indicated and to provide continuousmovement of the tube during the formation of the bag.

I claim:

l. In an automatic machine organized to form two satchel ends upon a bagtube, the combination of duplicate sets of instrumentalities forconveying the bag tube for separating, spreading and forming the edgesof the open ends of the tube, and for flattening, gluing' and foldingand pressing the said ends to form the satchel ends, supports for saidduplicate sets of instrumentalities,` and means for increasing ordiminishing the distance between said supports, to permit of varying thelength of the bag tube, substantially as described.

2. In an automatic machine organized to form two satchel ends upon a bagtube, the combination of duplicate sets of tube conveying devices, andsatchel end forming devices, arranged parallel to each other, supportsfor said duplicate sets of devices, guides upon which one of saidsupports slides and means for adjusting the relative distance betweensaid supports to permit or" varying the length of the tube,substantially as described.

3. In an automatic machine organized to constructduplicate satchel endsupon a bag' tube, the combination of duplicate sets of conveying devicesand duplicate sets of satchel end forming devices, a common source ofpower for both sets of devices, means for manipulating each deviceemployed in forming said satchel ends, whereby said satchel ends areformed in a continuous manner when passing over the conveying devices,said manipulating means being operatively connected with said commonsource of power, a support for each of said duplicate set of conveyingdevices and satchel end forming devices, said supports being adjustablerelatively to each other, and adjusting means therefor, substantially asdescribed.

4. In an automatic machine for putting duplicate satchel ends upon avalve bag tube, the combination of duplicate sets of conveying devices,duplicate sets of separating, spreading and forming devices for the endsof the bag tube, duplicate sets of pressure rolls, gluing' devices,cloth valve attaching devices, folding devices and pressing devices, acommon source of power for said sets of devices, and manipulating meanstherefor operatively connected with said common source of power, each ofsaid sets of devices being adjustable to and from its duplicate set,whereby the length of the bag tube may be varied, substantially asdescribed.

In testimony whereof I aiiiX my signature, in presence of two witnesses.

JOHN ROGERS.

litnesses JOHN A. BOMMHARDT, MONROE E. MILLER.

